#define  _CRT_SECURE_NO_WARNINGS
#include <stdio.h>
int main()
{
	int a = 0;
	int b = 0;
	scanf("%d %d",&a,&b);
	a = a ^ b;
	b = a ^ b;
	a = a ^ b;
	printf("a=%d,b=%d\n",a,b);

	return 0;
}